--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/python/st-util.py	Sun Jan 13 13:02:29 2013 +0100
@@ -0,0 +1,74 @@
+#!/usr/bin/python
+
+import sys
+from PyQt4.QtCore import *
+from PyQt4.QtGui import *
+import stlink, usb
+
+class InformationDialog(QDialog):
+   def __init__(self, parent):
+      super().__init__(parent)
+      self.setWindowTitle('Info')
+      fl = QFormLayout(self)
+      if parent.stl:
+         fl.addRow('ST link version:', QLabel(parent.stl.Version))
+         fl.addRow('Chip id:', QLabel('0x{0:X}'.format(parent.stl.ChipId)))
+         fl.addRow('Current mode:', QLabel(parent.stl.CurrentModeString))
+         fl.addRow('Status:', QLabel(parent.stl.StatusString))
+
+class StUtil(QMainWindow):
+   connected = pyqtSignal(bool)
+   def __init__(self):
+      super().__init__()
+      self.stl = None
+      def buildAction(name, callback, shortcut=None):
+         a = QAction(name, self)
+         a.triggered.connect(callback)
+         if shortcut:
+            a.setShortcut(shortcut)
+         return a
+      mb = self.menuBar()
+      fileMenu = mb.addMenu("File")
+      self.connectAction = buildAction('Connect', self.connect)
+      fileMenu.addAction(self.connectAction)
+      self.disconnectAction = buildAction('Disconnect', self.disconnect)
+      fileMenu.addAction(self.disconnectAction)
+
+      self.miscMenu = mb.addMenu("Misc")
+      infoAction = buildAction('Info', self.info)
+      self.miscMenu.addAction(infoAction)
+
+      sb = self.statusBar()
+
+      self.connected.connect(self.handleConnectedChange)
+      self.connected.emit(False)
+   def handleConnectedChange(self, state):
+      self.miscMenu.setEnabled(state)
+      self.connectAction.setEnabled(not state)
+      self.disconnectAction.setEnabled(state)
+      msg = 'Connected!' if state else 'Disconnected!'
+      self.statusBar().showMessage(msg)
+   def info(self):
+      infoDialog = InformationDialog(self)
+      infoDialog.exec()
+   def connect(self):
+      try:
+         self.stl = stlink.STLink()
+         self.stl.open()
+      except (stlink.STLinkException, usb.UsbError) as e:
+         QMessageBox.warning(self, "Error", str(e))
+         self.stl = None
+      if self.stl:
+         self.connected.emit(True)
+   def disconnect(self):
+      if self.stl:
+         self.stl.close()
+         self.connected.emit(False)
+      self.stl = None
+
+if __name__ == '__main__':
+   app = QApplication(sys.argv)
+   stu = StUtil()
+   stu.show()
+   app.exec()
+